How to obtain internal MPC coefficients of NASTRAN RBE3?
How to obtain internal MPC coefficients of NASTRAN RBE3?
(OP)
Hello everybody,
I kindly request your help regarding some NASTRAN here...
Do somebody knows if there is a way of displaying the coefficients of the internal MPCs of an NASTRAN RBE3?
I was assigned to research how to replicate an analysis procedure in ANSYS from the NASTRAN procedure these guys have here.
In the process I was forced to investigate how the RBE3 works. Fortunately, I found a document which includes as an appendix the MSC Technical Note: "Mathematical Specification of the Modern RBE3 Element" which I included in the attachments. (page 159). In this document, it is included the process to calculate the coefficients of the MPCs that NASTRAN use to build the RBE3.
I want to understand the proceduce described here, and I want to compare my script based on this document against a real RBE3.
I've seen that DMAP can be used as:
ALTER 102$
TRNSP GM/GMT $
MATGPR GPL,USET,SIL,CMT//MIN $
Unfortunately I don't know what this all codes mean ;)
I have MSC Nastran 2007.
Thank you for your help. :)
Carlo
I kindly request your help regarding some NASTRAN here...
Do somebody knows if there is a way of displaying the coefficients of the internal MPCs of an NASTRAN RBE3?
I was assigned to research how to replicate an analysis procedure in ANSYS from the NASTRAN procedure these guys have here.
In the process I was forced to investigate how the RBE3 works. Fortunately, I found a document which includes as an appendix the MSC Technical Note: "Mathematical Specification of the Modern RBE3 Element" which I included in the attachments. (page 159). In this document, it is included the process to calculate the coefficients of the MPCs that NASTRAN use to build the RBE3.
I want to understand the proceduce described here, and I want to compare my script based on this document against a real RBE3.
I've seen that DMAP can be used as:
ALTER 102$
TRNSP GM/GMT $
MATGPR GPL,USET,SIL,CMT//MIN $
Unfortunately I don't know what this all codes mean ;)
I have MSC Nastran 2007.
Thank you for your help. :)
Carlo





RE: How to obtain internal MPC coefficients of NASTRAN RBE3?
not sure what you mean by "coefficients of RBE3".
for DMAP explanation, i'd look into the NASTRAN manuals. have you considered asking the "helpdesk" ? i've found them usually quite helpful.
RE: How to obtain internal MPC coefficients of NASTRAN RBE3?